<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <script src="../vue.js"></script>
</head>

<body>
  <div id="app">

  </div>
  <script>
    const vm = new Vue({
      data: {
        msg: "呜呼呼!!"
      },
      template: `
      <h1>{{msg}}</h1>
      `
    })
    setTimeout(() => {
      vm.$mount("#app")
    }, 2000)
  </script>
</body>

</html>